Whole-house rewiring is one of the clearest permit triggers in residential construction. Unlike some gray-area projects (a finished basement, a water-heater swap), replacing your home's entire electrical system is regulated work that affects life safety and property insurance. The National Electrical Code (NEC) and your state's building code amendments require licensed electrical work and inspection before energization. That said, the specific permit pathway depends on two things: what type of wiring you're replacing and whether you're opening walls to access it. Knob-and-tube rewiring looks different on a permit application than updating 60-year-old aluminum wiring in open walls. This page walks you through when you need a permit, how the process works, what it costs, and what the building inspector is actually looking for when they show up.
When whole-house rewiring requires a permit
Whole-house rewiring always requires an electrical permit. This is not a gray area. The moment you're replacing the main service, the feeder lines from the meter to the panel, the branch circuits to outlets and switches, or the grounding system, you've triggered the permitting requirement. Some jurisdictions bundle this into a single electrical permit; others require a main service upgrade permit plus a wiring permit. Most building departments won't let you pull an electrical permit unless you're a licensed electrician, a licensed contractor supervising a licensed electrician, or a homeowner in a jurisdiction that explicitly allows homeowner permits for electrical work (rare, and usually capped at single-family work). Check with your local building department before assuming you can pull the permit yourself.
The IRC R105 section governs which electrical work requires a permit. The rule is simple: if you're installing, replacing, or upgrading electrical systems that affect the service entrance, feeder lines, branch circuits, or grounding, you need a permit. The NEC — specifically NEC Article 230 (service entrance), Article 250 (grounding and bonding), and Article 300 (wiring methods) — sets the technical standards for how the work must be done. Your local building department enforces the NEC edition adopted by your state, which is typically the 2020 or 2023 NEC as of this writing, though some states lag by one or two cycles. The specific code edition matters because the inspector uses it as the reference standard during the inspection.
Two questions determine the permit scope. First, what wiring are you replacing? Knob-and-tube wiring (common in homes built before 1950) is a red flag — it's often ungrounded, uses cloth insulation, and lacks a neutral in the return path. Many insurance companies won't insure knob-and-tube homes; replacing it is often not optional. Aluminum branch-circuit wiring (common in the 1960s–1970s) is also flagged by many jurisdictions because aluminum expands and contracts differently than copper, leading to loose connections and fire risk. Replacing it is often code-required if you're doing a whole-house rewire. Knob-and-tube or aluminum wiring being replaced will likely require a full system inspection, not just a rough-in and final. Second, are you opening walls to access the wiring? If your rewiring involves cutting into drywall, removing lath-and-plaster, or cutting new pathways through studs, you're triggering additional inspections — rough-in, after-insulation, and final. If the rewiring is in an attic, crawl space, or unfinished basement where wiring runs are already exposed, the inspection scope is narrower but still required.
Most jurisdictions classify whole-house rewiring as a major electrical permit, not a minor one. Minor electrical permits typically cover things like adding a single circuit, upgrading a breaker, or installing a new outlet or light fixture. Major permits include service upgrades, panel replacements, and rewiring. The fee structure reflects this — whole-house rewiring typically runs $100–$500 depending on the size of the home and your jurisdiction's fee schedule. Some departments use a flat fee for electrical work; others charge a percentage of the project valuation (usually 1–2% of estimated labor and materials). Don't be shocked if your local building department asks you to estimate the total project cost. They use it to calculate the permit fee and to set the inspection schedule.
Plan review typically takes 1–3 weeks. The building department checks the electrical permit application against the current code edition, verifies that the licensed electrician (or licensed contractor) is in good standing, and sometimes requests clarification on the scope or a one-line diagram showing the service entrance, panel layout, and major branch circuits. If you're submitting plans (often required for whole-house work), make sure they show the main service entrance, the location of the electrical panel, grounding details, and the wiring method (copper NM, conduit, etc.). Missing details are the #1 reason plans get kicked back. Once the permit is approved, you'll get a permit number and an inspection card. The electrician cannot energize the system until the final inspection is passed.
Inspections happen in stages. For whole-house rewiring, expect a rough-in inspection (framing is up, wiring is run, but walls are not yet closed); an after-insulation inspection if insulation is being added after the wiring; and a final inspection before the utility company energizes the service. Some jurisdictions also require an inspection of the service entrance and grounding before the meter is installed. The inspector checks NEC compliance, verifies bonding and grounding, confirms the breaker sizing matches the wire gauge, and ensures the panel labeling is complete. If walls are being opened or new ones built, the building department may also send a general building inspector (separate from the electrical inspector) to check framing and fire-blocking compliance. This adds time but is routine for whole-house rewires that involve wall penetration.
How whole-house rewiring permits vary by state and region
The 2020 and 2023 National Electrical Code are adopted nationwide, but states and local jurisdictions layer on amendments. California's Title 24 adds stricter requirements for service-entrance grounding and equipment bonding in seismic zones. Florida's 8th Edition Building Code includes hurricane-hardening requirements — including anchoring the electrical service entrance and using conduit instead of NM cable in certain applications. New York and New Jersey require bonding of water and gas lines to the electrical service, which is code-minimum in most places but rigorously enforced there. If you're in a coastal state (FL, CA, HI, parts of the Northeast), expect stricter inspection and possibly a surcharge on the permit fee for storm-hardening compliance.
Homeowner electrical permits are rare but not impossible. A handful of states (including some jurisdictions in Texas, Oregon, and Washington) allow homeowners to pull electrical permits for work on owner-occupied single-family homes without a licensed electrician — but the work still requires inspection and must meet the current code. Most states require a licensed electrician to be involved. Some require the electrician to pull the permit; others allow the contractor or homeowner to pull it as long as the electrician's license number is listed on the application. Check with your local building department to confirm the rule in your area. If you're planning to do any of the work yourself (even running conduit or installing outlets after the licensed electrician does the hard wiring), clarify this in advance with the building department. Some jurisdictions prohibit homeowner labor on service-entrance work but allow it on branch circuits.
The cost of the permit varies widely by region. Rural jurisdictions in the Midwest and South often charge a flat fee of $50–$100 for an electrical permit. Urban and coastal jurisdictions (NYC, San Francisco, Boston, Miami) often charge 1.5–2% of the project valuation, which can run $200–$500 for a whole-house rewire. Some states add a specific surcharge for service-entrance upgrades. The timeline also varies: rural counties often process permits over-the-counter in a day or two; large cities like Houston, Chicago, and Los Angeles can take 2–4 weeks for plan review and approval. Factor this into your scheduling if you're coordinating with other trades (HVAC, plumbing, structural work) that depend on the electrical service being in place.
Aluminum branch-circuit wiring (common in the 1960s–1970s) is treated differently by different states. Some states require it to be replaced during any whole-house rewire. Others allow it to remain if the home has been certified by a licensed electrician and the aluminum has been properly maintained (no signs of corrosion or loose connections). A few states have no specific rule — the decision rests with the local building department. If your home has aluminum wiring, ask your local building department whether it's a mandatory replace-out or if you can leave it in place with inspection and certification. This can add $3,000–$8,000 to the project cost if you're required to replace every aluminum circuit.
Common scenarios
You're replacing knob-and-tube wiring with modern Romex in a 1920s home and opening walls to access it
You definitely need a permit. Knob-and-tube is ungrounded and unsafe by modern code standards, and the fact that you're opening walls triggers a full building inspection in addition to the electrical inspection. You'll file an electrical permit for the rewiring plus a building permit (or a combined building/electrical permit, depending on your jurisdiction) for the wall work. The electrician needs to be licensed. Plan review typically takes 2–3 weeks. Expect rough-in inspection (wiring runs, box locations), after-insulation inspection, and final inspection. The inspector will check that the new wiring is properly bonded and grounded, that junction boxes are accessible, that wire sizing matches the breaker, and that the service entrance is properly upgraded if the old one is too small. The permit will cost $150–$400 depending on your local fee schedule.
You're upgrading your electrical panel from 100 amp to 200 amp and the electrician is running new feeder wire from the meter to the panel, but the branch circuits remain the same
You need an electrical permit, and this is a main service upgrade — one of the most common whole-house electrical permits. The electrician pulls the permit, and plan review is usually faster than full rewiring because the scope is narrower: the utility company cuts the service at the meter, the electrician runs new feeder wire (typically 2/0 or 3/0 copper in conduit, per NEC 230.42), installs the new panel with the correct main breaker (200 amp, per NEC 230.90), and rebinds the grounding and bonding. The old panel is deactivated. This is a major inspection — the inspector checks the feeder-wire size, the conduit fill, the panel location and clearance (per NEC 230.72), and the main breaker amperage. You'll need a rough-in inspection before the panel is energized and a final inspection after. Total time is typically 1–2 weeks for plan review and 1–2 weeks for inspections. Permit cost is $100–$300. The utility company coordinates with the building department on when they can cut and restore power.
You're replacing old cloth-insulated wire in the attic and crawl space of a 1970s home with new Romex, but you're not opening any walls
You need a permit. Even though you're not opening walls, you're replacing the branch-circuit wiring throughout the home, which is a rewiring project. The scope is actually simpler than wall-opening work because the wiring is already accessible, so the rough-in inspection can be done in the attic and crawl space without waiting for drywall to come down. However, the final inspection is still required before the service is energized. The electrician will need to verify that all new wire is properly supported (per NEC 300.11, using staples or clips every 4.5 feet on horizontal runs and 3 feet on vertical), that splices are in accessible boxes, and that the grounding and bonding are complete. If the old panel is being upgraded too, that gets its own inspection. Plan review takes 1–2 weeks; inspections another 1–2 weeks. Permit cost is typically $100–$250.
You're keeping your 1980s copper-wiring system intact and just replacing breakers and some outlets to add capacity
You do not need a whole-house rewiring permit. Replacing breakers and adding outlets is minor electrical work. Each breaker or outlet addition gets its own small permit (sometimes called a minor electrical permit or an add-circuit permit), which costs $25–$75 and takes 1–3 days. The electrician verifies that the new breaker size matches the wire gauge (per NEC 240.4), that the circuit is properly grounded, and that the outlets are correctly wired. If you're upgrading the service entrance at the same time (which is often done), that's a separate permit. But if the service, feeder wire, and branch-circuit wiring are all staying the same, you only need permits for the specific new circuits or breakers you're adding.
You're rewiring a home with aluminum branch circuits and your local code requires replacement
You need a major electrical permit, and the cost and timeline will be longer because you're replacing every aluminum branch circuit. Some jurisdictions require aluminum replacement as part of any whole-house rewire; others only require it if the home is being sold or if the aluminum shows signs of corrosion. Confirm your local rule with the building department before applying. If replacement is mandatory, the electrician must run new copper circuits from the panel to every outlet, switch, and fixture. This is essentially a full rewiring and will involve opening walls in many cases. Expect 3–4 weeks for plan review (because the scope is complex), multiple rough-in inspections as walls are opened, and a final inspection. The permit will cost $200–$500. The project itself often runs $8,000–$15,000 in labor and materials, depending on the home size and local electrician rates.
Documents you'll need and who can pull the permit
| Document | What it is | Where to get it |
|---|---|---|
| Electrical permit application | The standard form required by your local building department. It includes project address, description of work, estimated cost, licensed electrician name and license number, and signature lines. Some jurisdictions call this an electrical subpermit or trade permit. | Download from your local building department website or pick up at the permit office. Most departments provide the form as a PDF. |
| Site plan or one-line diagram (for whole-house rewiring) | A drawing showing the home's electrical service entrance, the location of the main panel, the feeder wire route, major branch circuits, and the grounding system. For a full rewire, the electrician usually sketches this on the back of the permit application or attaches a separate sheet. It doesn't need to be elaborate — the inspector just needs to understand the scope and how the work meets NEC 230, 250, and 300. | The licensed electrician prepares this. The electrician often submits it with the permit application. If you're pulling the permit yourself (in a homeowner-permit jurisdiction), you'll need to work with the electrician to sketch it out before filing. |
| Licensed electrician's license and liability insurance | Proof that the electrician pulling or supervising the work is licensed and insured. Most building departments verify the license number against the state licensing board before approving the permit. Insurance is often required as a condition of the permit. | The electrician provides the license number and insurance information on the permit application or as attachments. You can verify the license number yourself on your state's electrical licensing board website (e.g., the Department of Labor, the Professional Regulation Commission, or your state's electrical board). |
| Proof of ownership or authorization | If someone other than the homeowner is pulling the permit, the building department may ask for a letter authorizing the electrician or contractor to file on your behalf. Not all jurisdictions require this, but it's standard in some cities. | You write a simple signed letter: 'I authorize [electrician name] to pull an electrical permit for whole-house rewiring at [address]. Signed, [your name], [date].' Bring it with the permit application. |
| Electrical code citation or equipment specification sheet (for service-entrance upgrades) | If you're upgrading the service entrance, the building department may want to see specs for the new panel, main breaker, and feeder wire to verify they match the code and the home's load calculation. This is less common for routine rewires but standard for service upgrades. | The electrician provides this. It often comes from the panel manufacturer's spec sheet or the electrician's load-calculation worksheet. |
Who can pull: In most states, a licensed electrician or a licensed electrical contractor pulls the electrical permit. Some jurisdictions allow a general contractor or homeowner to pull it if a licensed electrician is named on the application as the person doing the work. A few states (parts of Texas, Oregon, Washington) allow homeowners to pull electrical permits for owner-occupied single-family homes, but the work still requires inspection and the electrician's license number must be listed. Call your local building department and ask: 'Can a homeowner pull an electrical permit for whole-house rewiring, or must the electrician pull it?' The answer varies by jurisdiction, and you need to know before you apply.
Why whole-house rewiring permits get rejected (and how to fix them)
- Missing or incomplete electrician license number or proof of licensure
Verify the electrician's name and license number on the permit application against your state's licensing board. Include a copy of the license or a letter from the electrician confirming their license number and expiration date. The building department will also verify it independently, but submitting it upfront speeds approval. - Scope is vague or doesn't match the permit type filed
Be specific on the application. Don't write 'electrical work' — write 'whole-house rewiring, knob-and-tube replacement' or 'service upgrade from 100 amp to 200 amp plus feeder rewiring.' The building department needs to understand the scope to route it correctly and assign the right inspector. - Site plan or one-line diagram is missing or too vague
Submit a simple sketch showing the service entrance, main panel location, feeder-wire route, and the wiring method (Romex, conduit, etc.). It doesn't need to be to scale or color-coded — the inspector just needs to see the layout. For service upgrades, show the old and new panel locations and the feeder-wire size. - Estimated project cost is missing or implausibly low
Provide a realistic labor and material estimate. For whole-house rewiring, expect $10,000–$25,000 depending on the home size and local rates. If you lowball the estimate to reduce the permit fee, the building department will flag it. Some departments won't process the permit until the estimate is corrected. - Application doesn't specify whether walls are being opened or if existing wiring is being removed
Clarify on the permit application whether the work involves opening walls, removing old wiring, or both. If walls are being opened, mention it — it triggers a building permit in addition to an electrical permit, and the building department needs to coordinate inspections. - Code citations are from the wrong edition
Don't cite code sections at all on the application unless you're absolutely certain of the edition your jurisdiction uses. The building department will apply the correct code during review. If you do cite code (e.g., in a cover letter explaining complex work), verify the edition on your jurisdiction's website or call the building department to confirm.
How much does a whole-house rewiring permit cost?
Permit fees for whole-house rewiring vary by jurisdiction and are usually based on either a flat fee or a percentage of the estimated project cost. Expect $50–$500. Most jurisdictions in the Midwest and South use flat fees ($75–$150 for a standard rewire); coastal and major-metro areas often use a percentage model (1–2% of the project valuation), which can run $200–$500 for a whole-house job. Some states add a surcharge for service-entrance upgrades or for rewiring with hazardous wiring types (knob-and-tube, aluminum). The permit fee covers plan review and one final inspection; additional inspections (rough-in, after-insulation, framing) are typically included. Reinspections due to failed work cost extra ($25–$75 per reinspection). If the building department requires you to hire a third-party inspector (common in some jurisdictions for large projects), that's an additional cost ($200–$500), paid to the inspector, not the building department.
| Line item | Amount | Notes |
|---|---|---|
| Flat-fee jurisdiction (Midwest, South) | $75–$150 | Single flat fee covers whole-house electrical permit, plan review, and final inspection. Typical for rural and mid-size cities. |
| Percentage-based fee (major metros, coast) | $200–$500 | 1–2% of estimated project cost. For a $15,000 rewiring project, expect $200–$300. For a $25,000 service upgrade plus rewiring, expect $300–$500. |
| Service-entrance upgrade surcharge | $50–$100 | Some jurisdictions add a flat surcharge if the service entrance is being upgraded. Combined with the base fee, total can reach $250–$350. |
| Knob-and-tube or aluminum replacement surcharge | $25–$75 | Some jurisdictions charge extra if the work involves removing hazardous wiring. Not common, but check with your local department. |
| Reinspection fee (if work fails initial inspection) | $25–$75 per reinspection | Charged only if the electrician's work doesn't meet code and requires a second inspection. Not charged if the work passes the first time. |
| Third-party inspection (if required) | $200–$500 | Some jurisdictions require an independent third-party inspector for large projects. This fee goes to the inspector, not the building department, and is separate from the permit fee. |
Common questions
Do I have to hire a licensed electrician, or can I do the rewiring myself?
In most states, no — you must hire a licensed electrician or a licensed contractor who supervises a licensed electrician. A handful of states (parts of Texas, Oregon, Washington) allow homeowners to pull electrical permits and do electrical work on owner-occupied single-family homes, but the work still requires inspection and must meet code. Some states allow homeowners to pull the permit as long as a licensed electrician is listed as the person performing the work. Call your local building department and ask directly: 'Can I pull an electrical permit and do whole-house rewiring myself, or must I hire a licensed electrician?' The rule varies by state and county. If you do hire an electrician, verify their license on your state's licensing board website before signing a contract.
Can I get a permit before the electrician is hired, or do I need to have the electrician lined up first?
You need the electrician lined up. Most permit applications require the electrician's name and license number. The building department verifies the license before approving the permit. Some jurisdictions will let you file a preliminary application with a placeholder license number, but this is rare. The standard workflow is: get a proposal from the electrician, confirm they're licensed and insured, then file the permit together. Most electricians will submit the permit as part of their proposal process. If you're pulling the permit yourself, you need the electrician's license information in hand before you sit down with the application.
How long does the whole permit process take from application to final inspection?
Typically 2–4 weeks for plan review, then 1–3 weeks for inspections depending on the scope and how quickly the electrician completes the work. For a straightforward service-entrance upgrade, plan on 2–3 weeks total. For a full rewiring with wall opening, add another 1–2 weeks because rough-in and after-insulation inspections take longer. Rural jurisdictions often process over-the-counter permits in 1–2 days; large cities can take 3–4 weeks for plan review alone. The electrician can't energize the service until the final inspection passes, so budget for some downtime if you're on a tight schedule.
If my home has aluminum branch-circuit wiring, do I have to replace it during a whole-house rewire?
It depends on your jurisdiction. Some states require aluminum to be replaced during any whole-house rewire. Others allow it to stay if the electrician inspects it, finds no corrosion or loose connections, and certifies it as safe. A few states have no specific rule — the building department decides case by case. Call your local building department and ask: 'If I'm doing a whole-house rewire and the home has aluminum branch-circuit wiring, do I have to replace it, or can I leave it in place?' The answer determines your project scope and cost. Replacement typically adds $3,000–$8,000 in labor and materials.
What does the electrical inspector check during the final inspection?
The inspector verifies that the rewiring meets the current NEC and local amendments. They check that the service entrance is properly bonded and grounded (NEC 250.50–250.70), that feeder-wire size matches the breaker amperage (NEC 230.42 and 240.4), that the main panel is properly labeled and has a main breaker, that branch circuits are correctly sized, that all boxes are accessible and properly secured, that grounding and bonding are complete, and that the work is consistent with the approved plans. For service upgrades, they verify that the utility-side service termination (the meter and service entrance) meets utility requirements. For whole-house rewiring with wall opening, they also check framing and fire-blocking if a general building inspector is involved. The electrician should have the circuit map (labeling every breaker in the panel) ready for the inspection. Missing or incorrect labeling is a common failure point.
If the inspector finds a problem during the rough-in or final inspection, what happens?
The inspector writes a notice of noncompliance and the electrician has a set time (usually 10–15 days) to fix the problem. Common failures include improper box installation, incorrect wire sizing, missing bonding or grounding, and incorrect support of wires. Once the fix is made, the electrician calls for a reinspection. If the same inspector is available, the reinspection happens within a few days. If not, it can take another 1–2 weeks. Reinspections usually cost $25–$75. Major failures (like unsafe grounding or improper service entrance work) can halt the entire job until fixed. This is rare if the electrician is experienced, but plan on the possibility of a reinspection as part of the timeline.
Do I need separate permits for the building work (wall opening, framing) and the electrical work, or is one permit enough?
If you're opening walls as part of the rewiring, you typically need both an electrical permit and a building permit (or a combined permit if your jurisdiction allows). The electrical permit covers the wiring work; the building permit covers the wall opening, framing, fire-blocking, and insulation. Some jurisdictions have a single form for combined electrical and building permits. Others require you to file separately. Ask your building department: 'If I'm rewiring a home and opening walls in the process, do I file one permit or two?' The answer determines your application process, but either way, both inspections will be required.
Can the electrician start work before the permit is approved, or do they have to wait?
They must wait. Work cannot legally begin until the permit is issued. Starting work before permit approval is a violation and can result in fines, the work being ordered to stop, or the home being flagged as having unpermitted work (which affects insurance and resale). The electrician should be used to this timeline — they'll plan their schedule around permit approval. If you're on a tight deadline, file the permit as early as possible. Some jurisdictions offer expedited review for an additional fee ($50–$150).
What happens after the final inspection passes?
The building department issues a certificate of compliance or approval, and you get a signed-off permit card. You give this to the utility company or the electrician, and they notify the utility that the service is ready for energization. The utility company then restores power to your home. This usually happens within 1–2 business days of the final inspection. Keep a copy of the signed permit and the certificate of compliance for your records — you'll need it if you sell the home or file an insurance claim.
Ready to get started?
Whole-house rewiring is a straightforward permit process if you have a licensed electrician lined up. The first step is to call your local building department and confirm three things: whether homeowners can pull electrical permits in your jurisdiction (or if the electrician must pull it), what fee structure applies (flat fee or percentage), and how long plan review typically takes. Then meet with the electrician, get a proposal, and file the permit together. Most permits are approved within 2–3 weeks. Plan on 1–3 additional weeks for inspections depending on scope. If you have questions about your specific project — whether knob-and-tube must be replaced, whether walls need to be opened, or what the total cost will be — bring them to the electrician during your initial consultation. They've done this before and can guide you through the permit process.
Related permit guides
Other guides in the Electrical category: